CN113915839A - Refrigerator and control method for automatically opening and closing door of refrigerator - Google Patents
Refrigerator and control method for automatically opening and closing door of refrigerator Download PDFInfo
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- CN113915839A CN113915839A CN202111150083.9A CN202111150083A CN113915839A CN 113915839 A CN113915839 A CN 113915839A CN 202111150083 A CN202111150083 A CN 202111150083A CN 113915839 A CN113915839 A CN 113915839A
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- 238000001514 detection method Methods 0.000 claims abstract description 29
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- 230000008569 process Effects 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/008—Alarm devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/30—Insulation with respect to sound
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/06—Sensors detecting the presence of a product
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a refrigerator and a control method for automatically opening and closing a door of the refrigerator, wherein the refrigerator comprises at least one storage chamber and an automatic door opening and closing system, and the control method comprises the following steps: the refrigerator comprises a refrigerator door body, a driving motor, a weight detection device and a control device; the weight detection device is arranged below the storage chamber and used for detecting the weight of the articles in the storage chamber; the control device is used for: when a door opening and closing control instruction of a user is received, the weight of the articles in the storage room detected by the weight detection device is obtained; acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value; and controlling the driving motor to operate according to the motor rotating speed value so as to drive the refrigerator door body to be opened or closed. By adopting the invention, the running noise of the automatic door of the refrigerator can be effectively reduced, the energy consumption can be effectively reduced, and the use experience of a user is improved.
Description
Technical Field
The invention relates to the technical field of refrigerator control, in particular to a refrigerator and a control method for automatically opening and closing a door of the refrigerator.
Background
With the economic development and the improvement of the living standard of people, the refrigerator has long become an essential household appliance in daily life of people. The refrigerator mainly delays the deterioration of food by reducing the temperature of the food, thereby achieving the effect of long-term storage.
In order to facilitate the use of users, refrigerators with automatic opening and closing doors have been developed to automatically open or close the doors of the refrigerators. However, the inventors found that the prior art has at least the following problems: in the existing refrigerator with the automatic freezing door opening and closing function, a door opening and closing motor generally runs at a set fixed rotating speed, so that the energy consumption is high and the noise value is high.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator and a control method for automatically opening and closing a door of the refrigerator, which can effectively reduce the running noise of the automatic door of the refrigerator, effectively reduce energy consumption and improve the use experience of a user.
To achieve the above object, an embodiment of the present invention provides a refrigerator, including:
the refrigerator comprises a refrigerator body, a storage chamber and a control device, wherein at least one storage chamber is arranged in the refrigerator body;
an automatic opening and closing door system comprising: the refrigerator comprises a refrigerator door body, a driving motor, a weight detection device and a control device;
the driving motor is connected with the refrigerator door body and used for driving the refrigerator door body to open or close;
the weight detection device is arranged below the storage chamber and used for detecting the weight of the articles in the storage chamber;
the control device is respectively connected with the weight detection device and the driving motor and is used for:
when a door opening and closing control instruction of a user is received, the weight of the articles in the storage room detected by the weight detection device is obtained;
acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value;
and controlling the driving motor to operate according to the motor rotating speed value so as to drive the refrigerator door body to be opened or closed.
As an improvement of the above scheme, the automatic door opening and closing system further comprises an alarm device connected with the control device and used for sending an alarm prompt;
before the motor rotation speed value corresponding to the weight of the article in the storage chamber is obtained according to the corresponding relation between the preset article weight and the motor rotation speed value, the control device is further configured to:
judging whether the weight of the articles in the storage room is in a preset safe weight range or not;
if yes, executing the following steps: acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value;
if not, controlling the alarm device to send out a danger alarm prompt.
As an improvement of the above scheme, the automatic door opening and closing system further comprises a current detection device, which is respectively connected with the driving motor and the control device and is used for detecting the running current of the driving motor;
after the driving motor is controlled to operate according to the motor rotating speed value, the control device is further used for:
acquiring the current running current of the driving motor detected by the current detection device;
when the running current is larger than a preset safe current, controlling the driving motor to stop running;
and when the running current is less than or equal to a preset safe current, controlling the driving motor to run according to the motor rotating speed value.
As an improvement of the above scheme, the automatic door opening and closing system further comprises an opening limit position switch and a closing limit position switch; the opening limit position switch is used for detecting whether the refrigerator door body is opened to an opening limit position or not, and the closing limit position switch is used for detecting whether the refrigerator door body is closed to a closing limit position or not;
after the driving motor is controlled to operate according to the motor rotating speed value, the control device is further used for:
detecting whether the opening limit position switch or the closing limit position switch is triggered or not in real time in the running process of the driving motor;
and when the opening limit position switch or the closing limit position switch is triggered, controlling the driving motor to stop running.
As an improvement of the above solution, after the controlling the driving motor to operate according to the motor rotation speed value, the control device is further configured to:
detecting whether the driving motor stops running abnormally or not;
when the abnormal stop operation of the driving motor is detected, judging whether the driving motor meets a preset operation suspension condition;
if yes, controlling the driving motor to stop running; if not, the driving motor is judged to be in fault, and the alarm device is controlled to send out a fault alarm prompt.
As an improvement of the above scheme, the detecting whether the driving motor stops operating abnormally includes:
detecting whether the driving motor stops running and the opening limit position switch or the closing limit position switch is not triggered.
The embodiment of the invention also provides a control method for automatically opening and closing the door of the refrigerator, which comprises the following steps:
when a door opening and closing control instruction of a user is received, acquiring the weight of the articles in the storage chamber of the refrigerator at present;
acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value;
and controlling the driving motor to operate according to the rotating speed value of the motor so as to drive the automatic opening and closing door of the refrigerator to be opened or closed.
As an improvement of the above scheme, before the obtaining of the motor rotation speed value corresponding to the weight of the article in the storage chamber according to the preset corresponding relationship between the weight of the article and the motor rotation speed value, the method further includes:
judging whether the weight of the articles in the storage room is in a preset safe weight range or not;
if yes, executing the following steps: acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value;
if not, sending out a danger alarm prompt.
As an improvement of the above scheme, after the controlling the driving motor to operate according to the motor speed value to drive the automatic opening and closing door of the refrigerator to open or close, the method further includes:
acquiring the current running current of the driving motor;
when the running current is larger than the preset safe current, controlling the driving motor to stop running and sending out a danger alarm prompt;
and when the running current is less than or equal to a preset safe current, controlling the driving motor to run according to the rotating speed value of the motor so as to drive the automatic opening and closing door of the refrigerator to be opened or closed.
As an improvement of the above solution, after the controlling the driving motor to operate according to the motor rotation speed value, the control device is further configured to:
detecting whether the automatic door opening and closing reaches an opening limit position or a closing limit position in real time in the running process of the driving motor;
and when the automatic opening and closing door is detected to reach the opening limit position or the closing limit position, controlling the driving motor to stop running.
Compared with the prior art, the refrigerator and the control method for automatically opening and closing the door of the refrigerator disclosed by the embodiment of the invention have the advantages that the automatic door opening and closing system is arranged in the refrigerator, and the weight detection device is additionally arranged and used for detecting the weight of articles in the storage chamber of the refrigerator. When a door opening and closing control instruction of a user is received, the weight of the articles in the storage room detected by the weight detection device is obtained; acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value; and controlling the driving motor to operate according to the motor rotating speed value so as to drive the refrigerator door body to be opened or closed. By adopting the embodiment of the invention, when a user controls the refrigerator to automatically open and close the door, the system can control the driving motor for opening and closing the door to operate at different rotating speeds according to different object weights, and compared with the condition that the driving motor for opening and closing the door operates at a set fixed rotating speed under the conditions of no load or full load and multiple object weights of the existing refrigerator, the invention can effectively reduce the energy consumption of the refrigerator, reduce the operation noise value of the refrigerator to a certain extent and improve the use experience of the user.
Drawings
Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an automatic door opening and closing system for a refrigerator according to an embodiment of the present invention;
fig. 3 is a schematic view of a work flow executed by the control device of the refrigerator in the embodiment of the present invention;
fig. 4 is a schematic view of another work flow executed by the control device of the refrigerator in the embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for controlling an automatic door opening and closing operation of a refrigerator according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic structural diagram of a refrigerator according to an embodiment of the present invention is shown. An embodiment of the present invention provides a refrigerator 10, including: the refrigerator includes a refrigerator body 11 having at least one storage chamber 12 for storing articles therein. The refrigerator 10 also includes an automatic door opening and closing system 13.
Referring to fig. 2, a schematic structural diagram of an automatic door opening and closing system of a refrigerator according to an embodiment of the present invention is shown. The automatic door opening and closing system 13 includes: refrigerator door 131, driving motor 132, weight detection device 133 and control device 134.
The driving motor 132 is connected to the refrigerator door 131 and configured to drive the refrigerator door 131 to open or close. The weight detecting device 133 is disposed below the storage chamber 12, and detects the weight of the articles in the storage chamber 12.
The control device 134 is connected to the weight detecting device 133 and the driving motor 132, respectively. Fig. 3 is a schematic diagram of a workflow executed by the control device of the refrigerator according to the embodiment of the present invention. The control device 134 is configured to execute steps S11 to S13:
and S11, when a door opening and closing control command of a user is received, acquiring the weight of the current articles in the storage chamber detected by the weight detection device.
And S12, acquiring a motor rotating speed value corresponding to the weight of the article in the storage chamber according to the corresponding relation between the preset article weight and the motor rotating speed value.
And S13, controlling the driving motor to operate according to the motor rotating speed value so as to drive the refrigerator door body to be opened or closed.
It should be noted that, when the refrigerator door 131 is in a closed state, if a door opening control instruction input by a user is received, the driving motor 132 operates, so as to drive the refrigerator door 131 to open; when the refrigerator door 131 is in an open state, if a door closing control command input by a user is received, the driving motor 132 operates, so as to drive the refrigerator door 131 to close.
In the embodiment of the present invention, the rotation speed of the driving motor 132 is calculated according to the weight of the articles currently stored in the storage chamber 12.
Specifically, a weight detecting device 133 is provided below the storage chamber 12, thereby detecting the weight of the articles inside the storage chamber 12 in real time. Preferably, the weight detecting device 133 transmits the detected weight of the article to the control device 134 by information interaction with the control device 134.
The control device 134 determines the weight of the object currently inside the storage chamber 12 when receiving a door opening control command or a door closing control command from a user. And calling a corresponding relation between the pre-established and stored article weight and the motor rotating speed value, and inquiring to obtain the corresponding motor rotating speed value according to the current article weight, so as to control the driving motor to operate according to the inquired motor rotating speed value.
Optionally, the corresponding relationship between the article weight and the motor rotation speed value is specifically a corresponding relationship between an article weight interval and a motor rotation speed value, that is, the article weight in a certain article weight interval is the same as the corresponding motor rotation speed value. After the control device 134 obtains the weight of the article in the current storage room, the article weight interval where the article is located is determined, and then the corresponding motor rotation speed value is obtained through query according to the corresponding relationship between the article weight interval and the motor rotation speed value.
It should be noted that the corresponding relationship between the weight of the article and the rotation speed value of the motor is obtained through a test in advance, and may be set according to an actual situation, which is not specifically limited herein.
The embodiment of the invention provides a refrigerator which is provided with an automatic door opening and closing system and is additionally provided with a weight detection device for detecting the weight of articles in a storage chamber of the refrigerator. When a door opening and closing control instruction of a user is received, the weight of the articles in the storage room detected by the weight detection device is obtained; acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value; and controlling the driving motor to operate according to the motor rotating speed value so as to drive the refrigerator door body to be opened or closed. By adopting the embodiment of the invention, when a user controls the refrigerator to automatically open and close the door, the system can control the driving motor for opening and closing the door to operate at different rotating speeds according to different object weights, and compared with the condition that the driving motor for opening and closing the door operates at a set fixed rotating speed under the conditions of no load or full load and multiple object weights of the existing refrigerator, the invention can effectively reduce the energy consumption of the refrigerator, reduce the operation noise value of the refrigerator to a certain extent and improve the use experience of the user.
In a preferred embodiment, the automatic door opening and closing system further comprises an alarm device. The alarm device is arranged on the refrigerator body and connected with the control device 134 for sending out an alarm prompt.
Then, referring to fig. 4, it is a schematic diagram of another work flow executed by the control device of the refrigerator in the embodiment of the present invention. After step S11, and before step S12, the control device 134 is further configured to execute steps S21 to S23:
and S21, judging whether the weight of the articles in the storage room is in a preset safe weight range or not.
S22, if yes, executing the following steps: and acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value.
And S23, if not, controlling the alarm device to give out a danger alarm prompt.
In the embodiment of the invention, a safe weight interval is preset to limit the upper limit and the lower limit of the weight of articles stored in the storage chamber of the refrigerator.
For example, the safe weight interval is defined as [0, 20] kg, when the user places the articles in the storage chamber and then sends a door closing control command to the refrigerator, and the control device 134 receives the door closing control command from the user, obtains the weight of the articles in the storage chamber 12 currently detected by the weight detection device 133, and then the control device 134 first determines whether the weight of the articles in the storage chamber is within a preset safe weight interval. If the weight of the articles stored by the user exceeds 20kg and exceeds the specified safe weight range, the driving motor 132 does not work, and controls the alarm device to send out a danger alarm prompt to remind the user that the weight of the articles currently stored exceeds the use range, so that the user can find out problems in time and adjust the articles. If the weight of the articles stored by the user is within the safe weight interval, further calling the corresponding relation between the preset article weight and the motor rotating speed value to obtain the motor rotating speed value corresponding to the inquired article weight, and controlling the driving motor to operate according to the inquired motor rotating speed value so as to drive the refrigerator door to be closed.
It should be noted that the alarm device may send the danger alarm prompt in a manner that a configured LED lamp displays preset light and voice information; the danger alarm prompt can be sent out in a mode of playing preset voice information through a voice unit configured with the alarm prompt device, and the beneficial effects obtained by the invention are not influenced in a combined mode of displaying an LED lamp and playing voice.
As a preferred embodiment, referring to fig. 2, the automatic door opening and closing system 13 further includes a current detection device 135. The current detection device 135 is respectively connected to the driving motor 132 and the control device 134, and is configured to detect an operating current of the driving motor 132. Preferably, the current detection device 135 transmits the detected operation current value to the control device 134 in real time through information interaction with the control device 134.
Then, referring to fig. 4, after the step S13, the control device 134 is further configured to execute the steps S31 to S33:
s31, acquiring the current running current of the driving motor detected by the current detection device;
s32, controlling the driving motor to stop running when the running current is larger than a preset safe current;
and S33, when the running current is less than or equal to the preset safe current, jumping to the step S13, and controlling the driving motor to run according to the motor rotating speed value.
In the embodiment of the present invention, after controlling the driving motor 132 to operate, the current detection device 135 detects the operating current of the driving motor 132 in real time, the control device 134 determines the magnitude relationship between the operating current and a preset safe current in real time, and when the operating current is less than or equal to the preset safe current, it indicates that the current driving motor is operated safely, the driving motor is controlled to continue to operate according to the motor rotation speed value; and when the running current is greater than the preset safe current, indicating that potential safety hazards exist in the running of the current driving motor, and controlling the driving motor to stop running.
By adopting the technical means of the embodiment of the invention, the current detection device is additionally arranged in the automatic door opening and closing system to detect the running current of the driving motor in real time, so that the driving motor can be controlled to stop working in time when the running current of the driving motor is abnormal, the safe running of the automatic door opening and closing is ensured, and the personal safety of a user is ensured.
Preferably, on the basis that the automatic door opening and closing system 13 includes an alarm device, the control device further controls the alarm device to send a danger alarm prompt after determining that the operating current is greater than the preset safe current, so as to remind a user that the current driving motor operates abnormally, thereby facilitating the user to find a problem in time and perform maintenance.
Referring to fig. 2, as a preferred embodiment, the automatic opening and closing door system further includes an open limit position switch 136 and a closed limit position switch 137.
The opening limit position switch 136 is arranged at the opening limit position of the refrigerator door body 131 and is used for detecting whether the refrigerator door body 131 is opened to the opening limit position; the closing limit position switch 137 is disposed at a closing limit position of the refrigerator door 131, and is configured to detect whether the refrigerator door 131 is closed to the closing limit position.
The control device 134 is connected to the open limit position switch 136 and the close limit position switch 137 respectively, and is configured to obtain the trigger states of the open limit position switch 136 and the close limit position switch 137.
Referring to fig. 4, after step S13, the control device is further configured to execute steps S41 to S42:
s41, detecting whether the limit position switch is triggered or not in real time in the running process of the driving motor;
and S42, when the opening limit position switch or the closing limit position switch is triggered, controlling the driving motor to stop running.
In the embodiment of the present invention, an open limit position switch 136 and a closed limit position switch 137 are provided for detecting whether the refrigerator door 131 moves to the limit positions of opening and closing. When the refrigerator door 131 is opened to the opening limit position, the opening limit position switch 136 is triggered, and then the control device 134 can detect that the opening limit position switch 136 is in a triggered state; when the refrigerator door 131 is closed to the closed limit position, the closed limit position switch 137 is triggered, and the control device 134 can detect that the closed limit position switch 137 is in a triggered state.
In the operation process of the driving motor, if it is detected that the opening limit position switch 136 or the closing limit position switch 137 is triggered, indicating that the refrigerator door 131 has moved to the corresponding opening limit position or closing limit position, controlling the driving motor 132 to stop operating.
By adopting the technical means of the embodiment of the invention, the operation stop condition of the driving motor can be accurately and simply determined, and the safe operation of the driving motor can be ensured.
As a preferred embodiment, referring to fig. 4, after step S13, the control device is further configured to execute steps S43 to S45:
s43, detecting whether the driving motor stops running abnormally or not;
s44, when the abnormal stop operation of the driving motor is detected, judging whether the driving motor meets a preset operation suspension condition;
s45, if yes, controlling the driving motor to stop running; if not, the driving motor is judged to be in fault, and the alarm device is controlled to send out a fault alarm prompt.
Specifically, step S43 specifically includes: detecting whether the driving motor stops running and the opening limit position switch or the closing limit position switch is not triggered.
In the embodiment of the present invention, after controlling the operation of the driving motor, if the open limit switch 136 or the close limit switch 137 is not triggered, it indicates that the refrigerator door 131 does not move to the open limit position or the close limit position, the driving motor 132 should continue to operate, and at this time, if the driving motor 132 has stopped operating, it indicates that the driving motor 132 is in an abnormal operation stop state. Therefore, it is necessary to further determine the cause of the abnormal stop of the driving motor 132.
In the embodiment of the present invention, a pause condition of the driving motor is preset, for example, a finger-pinch prevention pause condition, an anti-collision pause condition, etc., and the pause condition is used for forcibly controlling the driving motor 132 to stop operating when detecting that there may be a user's hand pinched or a user's collision is detected during the opening and closing of the refrigerator door 131, so as to forcibly pause the opening or closing operation of the refrigerator door 131.
On the basis, if the driving motor 132 abnormally stops operating, whether the driving motor 132 meets a preset operation suspension condition is judged, and if the driving motor 132 meets the preset operation suspension condition, the driving motor 132 is controlled to stop operating; if the driving motor 132 does not meet the preset operation suspension condition, it may be that the driving motor 132 has an operation fault, and therefore, the alarm device is controlled to send out a fault alarm prompt, so that a user can find a problem in time and perform maintenance.
By adopting the technical means of the embodiment of the invention, the operation monitoring of the driving motor can be effectively realized, and the normal and safe operation of the driving motor is ensured.
Fig. 5 is a schematic flow chart of a method for controlling an automatic door opening and closing operation of a refrigerator according to an embodiment of the present invention. The embodiment of the invention provides a control method for automatically opening and closing a door of a refrigerator.
The refrigerator comprises at least one storage chamber and an automatic door opening and closing system, wherein the storage chamber is used for storing articles; the automatic door opening and closing system comprises a refrigerator door body, a driving motor, a weight detection device and a control device. The control method for automatically opening and closing the door of the box is executed by the control device, and specifically comprises the following steps of S51 to S53:
and S51, when a door opening and closing control instruction of a user is received, acquiring the weight of the articles in the storage chamber of the refrigerator at present.
Specifically, the weight of the article in the storage chamber is detected by the weight detection device provided below the storage chamber, and the detected weight is transmitted to the control device.
S52, obtaining a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to the corresponding relation between the preset weight of the articles and the motor rotating speed value;
and S53, controlling the driving motor to operate according to the motor rotating speed value so as to drive the automatic opening and closing door of the refrigerator to open or close.
By adopting the embodiment of the invention, when a user controls the refrigerator to automatically open and close the door, the system can control the driving motor for opening and closing the door to operate at different rotating speeds according to different object weights, and compared with the condition that the driving motor for opening and closing the door operates at a set fixed rotating speed under the conditions of no load or full load and multiple object weights of the existing refrigerator, the invention can effectively reduce the energy consumption of the refrigerator, reduce the operation noise value of the refrigerator to a certain extent and improve the use experience of the user.
As a preferred embodiment, after step S51, and before step S52, the method further includes step S54:
s54, judging whether the weight of the articles in the storage room is in a preset safe weight range or not; if yes, executing the following steps: acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value; if not, sending out a danger alarm prompt.
By adopting the technical means of the embodiment of the invention, whether the weight of the articles in the storage chamber is in the safe weight range or not is detected, so that the user can be informed in time when the weight of the articles does not meet the safe weight requirement, and the safe operation of automatically opening and closing the door is ensured.
As a preferred embodiment, after step S53, the method further includes steps S55 to S57:
s55, acquiring the current running current of the driving motor;
s56, when the running current is larger than the preset safe current, controlling the driving motor to stop running and sending out a danger alarm prompt;
and S57, when the running current is less than or equal to a preset safe current, controlling the driving motor to run according to the motor rotating speed value so as to drive the automatic opening and closing door of the refrigerator to be opened or closed.
By adopting the technical means of the embodiment of the invention, the running current of the driving motor is detected in real time, so that the driving motor can be controlled to stop working in time when the running current of the driving motor is abnormal, the safe running of automatic door opening and closing is ensured, and the personal safety of a user is ensured.
As a preferred embodiment, after step S53, the method further includes steps S58 to S59:
s58, detecting whether the automatic door opening and closing reaches an opening limit position or a closing limit position in real time in the running process of the driving motor;
and S59, when the automatic switch door is detected to reach the opening limit position or the closing limit position, controlling the driving motor to stop running.
By adopting the technical means of the embodiment of the invention, the operation stop condition of the driving motor can be accurately and simply determined, and the safe operation of the driving motor can be ensured.
It should be noted that, the method for controlling an automatic door opening and closing of a refrigerator according to the embodiment of the present invention is the same as all the process steps executed by the control device of the refrigerator according to the embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, so that the detailed description is omitted.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a Random Access Memory (RAM), or the like.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A refrigerator, characterized by comprising:
the refrigerator comprises a refrigerator body, a storage chamber and a control device, wherein at least one storage chamber is arranged in the refrigerator body;
an automatic opening and closing door system comprising: the refrigerator comprises a refrigerator door body, a driving motor, a weight detection device and a control device;
the driving motor is connected with the refrigerator door body and used for driving the refrigerator door body to open or close;
the weight detection device is arranged below the storage chamber and used for detecting the weight of the articles in the storage chamber;
the control device is respectively connected with the weight detection device and the driving motor and is used for:
when a door opening and closing control instruction of a user is received, the weight of the articles in the storage room detected by the weight detection device is obtained;
acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value;
and controlling the driving motor to operate according to the motor rotating speed value so as to drive the refrigerator door body to be opened or closed.
2. The refrigerator of claim 1, wherein the automatic opening and closing door system further comprises an alarm device connected to the control device for issuing an alarm prompt;
before the motor rotation speed value corresponding to the weight of the article in the storage chamber is obtained according to the corresponding relation between the preset article weight and the motor rotation speed value, the control device is further configured to:
judging whether the weight of the articles in the storage room is in a preset safe weight range or not;
if yes, executing the following steps: acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value;
if not, controlling the alarm device to send out a danger alarm prompt.
3. The refrigerator of claim 1, wherein the automatic opening and closing door system further comprises a current detecting means connected to the driving motor and the control means, respectively, for detecting an operating current of the driving motor;
after the driving motor is controlled to operate according to the motor rotating speed value, the control device is further used for:
acquiring the current running current of the driving motor detected by the current detection device;
when the running current is larger than a preset safe current, controlling the driving motor to stop running;
and when the running current is less than or equal to a preset safe current, controlling the driving motor to run according to the motor rotating speed value.
4. The refrigerator of claim 3, wherein the automatic opening and closing door system further comprises an open limit position switch and a closed limit position switch; the opening limit position switch is used for detecting whether the refrigerator door body is opened to an opening limit position or not, and the closing limit position switch is used for detecting whether the refrigerator door body is closed to a closing limit position or not;
after the driving motor is controlled to operate according to the motor rotating speed value, the control device is further used for:
detecting whether the opening limit position switch or the closing limit position switch is triggered or not in real time in the running process of the driving motor;
and when the opening limit position switch or the closing limit position switch is triggered, controlling the driving motor to stop running.
5. The refrigerator as claimed in claim 4, wherein after said controlling said driving motor to operate at said motor rotation speed value, said control means is further for:
detecting whether the driving motor stops running abnormally or not;
when the abnormal stop operation of the driving motor is detected, judging whether the driving motor meets a preset operation suspension condition;
if yes, controlling the driving motor to stop running; if not, the driving motor is judged to be in fault, and the alarm device is controlled to send out a fault alarm prompt.
6. The refrigerator according to claim 5, wherein the detecting whether the driving motor abnormally stops operating is specifically:
detecting whether the driving motor stops running and the opening limit position switch or the closing limit position switch is not triggered.
7. A control method for automatically opening and closing a door of a refrigerator is characterized by comprising the following steps:
when a door opening and closing control instruction of a user is received, acquiring the weight of the articles in the storage chamber of the refrigerator at present;
acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value;
and controlling the driving motor to operate according to the rotating speed value of the motor so as to drive the automatic opening and closing door of the refrigerator to be opened or closed.
8. The method for controlling automatic opening and closing of a door of a refrigerator according to claim 7, wherein before the motor rotation speed value corresponding to the weight of the article in the storage chamber is obtained according to the preset correspondence between the weight of the article and the motor rotation speed value, the method further comprises:
judging whether the weight of the articles in the storage room is in a preset safe weight range or not;
if yes, executing the following steps: acquiring a motor rotating speed value corresponding to the weight of the articles in the storage room at present according to a preset corresponding relation between the weight of the articles and the motor rotating speed value;
if not, sending out a danger alarm prompt.
9. The method for controlling an automatically opening and closing door of a refrigerator as claimed in claim 8, wherein after said controlling said driving motor to operate according to said motor rotation speed value to drive the automatically opening and closing door of the refrigerator to be opened or closed, the method further comprises:
acquiring the current running current of the driving motor;
when the running current is larger than the preset safe current, controlling the driving motor to stop running and sending out a danger alarm prompt;
and when the running current is less than or equal to a preset safe current, controlling the driving motor to run according to the rotating speed value of the motor so as to drive the automatic opening and closing door of the refrigerator to be opened or closed.
10. The control method of automatically opening and closing a door of a refrigerator as claimed in claim 8 or 9, wherein after said controlling said driving motor to operate according to said motor rotation speed value, said control means is further for:
detecting whether the automatic door opening and closing reaches an opening limit position or a closing limit position in real time in the running process of the driving motor;
and when the automatic opening and closing door is detected to reach the opening limit position or the closing limit position, controlling the driving motor to stop running.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111150083.9A CN113915839A (en) | 2021-09-29 | 2021-09-29 | Refrigerator and control method for automatically opening and closing door of refrigerator |
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| CN202111150083.9A CN113915839A (en) | 2021-09-29 | 2021-09-29 | Refrigerator and control method for automatically opening and closing door of refrigerator |
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| CN113915839A true CN113915839A (en) | 2022-01-11 |
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| CN202111150083.9A Pending CN113915839A (en) | 2021-09-29 | 2021-09-29 | Refrigerator and control method for automatically opening and closing door of refrigerator |
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Application publication date: 20220111 |